Method and apparatus for determining transmission time-frequency resources of traffic data

Abstract

The invention provides a method of determining transmission time-frequency resources of traffic data in a wireless communication network. The network device determines a time-domain transmission pattern Pi, j of the traffic data from a time-domain transmission pattern set PI, J; determines a frequency hopping pattern of the traffic data based on a frequency hopping matrix and a first rule, wherein the frequency hopping matrix is constructed by one or more Latin squares, a number of rows of the frequency hopping matrix is equal to a number of sub-bands in a frequency hopping bandwidth, each element in a row of the frequency hopping matrix successively represents a frequency hopping order of the complement transmission patterns Pi, j and Pi, j′, a number of columns of the frequency hopping matrix is equal to a number of transmissions of the traffic data, and the first rule is Pi, j and Pi, j′ are assigned with a same channel within a sub-band and a value of j is a part of J or all of J, the complement transmission patterns Pi, j and Pi, j′ in the transmission pattern subset Pi, J are assigned with a same channel within a sub-band and use a same sub-band for their first transmission, the non-complement transmission patterns Pi, j and Pi, k in the transmission pattern subset Pi, J have a same relative location in each sub-band and the non-complement transmission pattern subsets Pi, J and Ps, J are assigned with the different channels within a sub-band; and sends the traffic data according to the time-domain transmission pattern Pi, j and the frequency hopping pattern.

The invention claimed is: 
     
       1. A method of determining transmission time-frequency resources of traffic data in a network device of a wireless communication network, the method comprising:
 determining a time-domain transmission pattern P i, j  of the traffic data from a time-domain transmission pattern set P I, J , wherein i∈J, j∈J, P i, J  and P i′, J  are complement transmission pattern subsets, P i, j  and P i, j′  are complement transmission patterns within the transmission pattern subset P i, J , P i, j  and P i, k  are non-complement transmission patterns within the transmission pattern subset P i, J  and j≠k, and P i, J  and P s, J  are non-complement transmission pattern subsets and i≠s; 
 determining a frequency hopping pattern of the traffic data based on a frequency hopping matrix and a first rule, wherein the frequency hopping matrix is constructed by one or more Latin squares, a number of rows of the frequency hopping matrix is equal to a number of sub-bands in a frequency hopping bandwidth, each element in a row of the frequency hopping matrix successively represents a frequency hopping order of the complement transmission patterns P i, j  and P i, j′ , a number of columns of the frequency hopping matrix is equal to a number of transmissions of the traffic data, and the first rule is P i, j  and P i, j′  are assigned with a same channel within a sub-band and a value of j is a part of J or all of J, the complement transmission patterns P i, j  and P i, j′  in the transmission pattern subset P i, J  are assigned with a same channel within a sub-band and use a same sub-band for their first transmission, the non-complement transmission patterns P i, j  and P i, k  in the transmission pattern subset P i, J  have a same relative location in each sub-band and the non-complement transmission pattern subsets P i, J  and P s, J  are assigned with the different channels within a sub-band; and 
 sending the traffic data according to the time-domain transmission pattern P i, j  and the frequency hopping pattern; 
 wherein i, j, k and s are indices that indicate rows in respective matrices used to represent that transmission pattern, pattern set or pattern subset to which the indices refer. 
 
     
     
       2. The method according to  claim 1 , wherein the determining a time-domain transmission pattern comprises:
 dividing N sub-frames into M sub-frame groups evenly; 
 determining a first transmission pattern set, the first transmission pattern set including all rows in a first matrix H 1  and a second matrix H 2  except for their first rows, wherein the second matrix H 2  is a product of the first matrix H 1  and −1, and the first matrix has M columns; 
 determining a second transmission pattern set, the second transmission pattern set including a third matrix H 3  and a fourth matrix H 4 , wherein the fourth matrix H 4  and the third matrix H 3  are complementary, and each row in the first transmission pattern set and each row in the second transmission pattern set are combined respectively to constitute the time-domain transmission pattern set P I, J ; 
 selecting one row from the first transmission pattern set and one row from the second transmission pattern set to determine the time-domain transmission pattern P i, j  of the traffic data; 
 wherein the first transmission pattern set is used for determining transmission sub-frame groups and reception sub-frame groups, and the second transmission pattern set is used for determining transmission sub-frames within each transmission sub-frame group. 
 
     
     
       3. The method according to  claim 1 , wherein the non-complement transmission patterns P i, j  and P i, k  use a same frequency hopping order or different frequency hopping orders. 
     
     
       4. The method according to  claim 1 , wherein relative locations of frequency hopping of the complement transmission patterns P i, j  and P i, j′  within each sub-band are same. 
     
     
       5. The method according to  claim 1 , wherein the frequency hopping matrix and the first rule are pre-configured in the network device. 
     
     
       6. The method according to  claim 1 , further comprising:
 sending information about the time-domain transmission pattern P i, j  of the traffic data and frequency information about a first transmission of the traffic data to other network devices. 
 
     
     
       7. The method according to  claim 1 , further comprising:
 sending information about the time-domain transmission pattern P i, j  of the traffic data and frequency information about each of a plurality of transmissions of the traffic data to other network devices. 
 
     
     
       8. An apparatus for determining transmission time-frequency resources of traffic data in a network device of a wireless communication network, the apparatus comprising:
 a first determining unit for determining a time-domain transmission pattern P i, j  of the traffic data from a time-domain transmission pattern set P i, J , wherein i∈I, j∈J, P i, J  and P i′, J  are complement transmission pattern subsets, P i, j  and P i, j′  are complement transmission patterns within the transmission pattern subset P i, J , P i, j  and P i, k  are non-complement transmission patterns within the transmission pattern subset P i, J  and j≠k, and P i, J  and P s, J  are non-complement transmission pattern subsets and i≠s; 
 a second determining unit for determining a frequency hopping pattern of the traffic data based on a frequency hopping matrix and a first rule, wherein the frequency hopping matrix is constructed by one or more Latin squares, a number of rows of the frequency hopping matrix is equal to a number of sub-bands in a frequency hopping bandwidth, each element in one row of the frequency hopping matrix successively represents a frequency hopping order of the complement transmission patterns P i, j  and P i, j′ , a number of columns of the frequency hopping matrix is equal to a number of transmissions of the traffic data, and the first rule is P i, j  and P i, j′  are assigned with a same channel within a sub-band and a value of j is a part of J or all of J, the complement transmission patterns P i, j  and P i, j′  in the transmission pattern subset P i, J  are assigned with a same channel within a sub-band and use a same sub-band for their first transmission, the non-complement transmission patterns P i, j  and P i, k  in the transmission pattern subset P i, J  have a same relative location in each sub-band and the non-complement transmission pattern subsets P i, J  and P s, J  are assigned with different channels within a sub-band; and 
 a first sending unit for sending the traffic data according to the time-domain transmission pattern P i, j  and the frequency hopping pattern; 
 wherein i, j, k and s are indices that indicate rows in respective matrices used to represent that transmission pattern, pattern set or pattern subset to which the indices refer. 
 
     
     
       9. The apparatus according to  claim 8 , wherein the first determining unit is used for:
 dividing N sub-frames into M sub-frame groups evenly; 
 determining a first transmission pattern set, the first transmission pattern set including all rows in a first matrix H 1  and a second matrix H 2  except for their first rows, wherein the second matrix H 2  is a product of the first matrix H 1  and −1, and the first matrix has M columns; 
 determining a second transmission pattern set, the second transmission pattern set including a third matrix H 3  and a fourth matrix H 4 , wherein the fourth matrix H 4  and the third matrix H 3  are complementary, and each row in the first transmission pattern set and each row in the second transmission pattern set are combined respectively to constitute the time-domain transmission pattern set P I, J ; 
 selecting one row from the first transmission pattern set and one row from the second transmission pattern set to determine the time-domain transmission pattern P i, j  of the traffic data; 
 wherein the first transmission pattern set is used for determining transmission sub-frame groups and reception sub-frame groups, and the second transmission pattern set is used for determining transmission sub-frames within each transmission sub-frame group. 
 
     
     
       10. The apparatus according to  claim 8 , wherein the non-complement transmission patterns P i, j  and P i, k  use a same frequency hopping order or different frequency hopping orders. 
     
     
       11. The apparatus according to  claim 8 , wherein relative locations of frequency hopping of the complement transmission patterns P i, j  and P i, j′  within each sub-band are same. 
     
     
       12. The apparatus according to  claim 8 , wherein the frequency hopping matrix and the first rule are pre-configured in the network device. 
     
     
       13. The apparatus according to  claim 8 , wherein the first sending unit is further used for sending information about the time-domain transmission pattern P i, j  of the traffic data and frequency information about a first transmission of the traffic data to other network devices. 
     
     
       14. The apparatus according to  claim 8 , wherein the first sending unit is further used for sending information about the time-domain transmission pattern P i, j  of the traffic data and frequency information about each of a plurality of transmissions of the traffic data to other network devices.